The initial overviews are intentionally brief. Floats are the next numeric datatype on this list, but they contain floating-point numbers in contrast to. It stores whole numbers, for example, 1, 90, or 1999. Types in each category, and a summary of the data type storage A commonly used numeric data type is the Integer. For example, integers are a basic type defined in mathematics, while an array of integers is the result of applying an array type generator to the integer type. (character and byte) types, spatial types, and theĪn overview and more detailed description of the properties of the Generated data types or derived data types are specified, and partly defined, in terms of other data types. A join is a SQL operation that combines data from two sources into one record in a query recordset based on values in a specified field that the sources have in common. A relationship can be one-to-one, one-to-many, or many-to-many. Value types include simple types (such as int, float, bool, and char), enum types, struct types, and Nullable value types. Several categories: numeric types, date and time types, string Data types in relationships and joins A table relationship is an association between common fields in two tables. MEDIUMINT, BIGINT 11.1.3 Fixed-Point Types (Exact Value) - DECIMAL, NUMERIC 11.1.4 Floating-Point Types (Approximate Value) - FLOAT, DOUBLE 11.1.5 Bit-Value Type - BIT 11.1.6 Numeric Type Attributes 11.1.7 Out-of-Range and Overflow Handling 11.2 Date and Time Data Types 11.2.1 Date and Time Data Type Syntax 11.2.2 The DATE, DATETIME, and TIMESTAMP Types 11.2.3 The TIME Type 11.2.4 The YEAR Type 11.2.5 Automatic Initialization and Updating for TIMESTAMP and DATETIME 11.2.6 Fractional Seconds in Time Values 11.2.7 What Calendar Is Used By MySQL? 11.2.8 Conversion Between Date and Time Types 11.2.9 2-Digit Years in Dates 11.3 String Data Types 11.3.1 String Data Type Syntax 11.3.2 The CHAR and VARCHAR Types 11.3.3 The BINARY and VARBINARY Types 11.3.4 The BLOB and TEXT Types 11.3.5 The ENUM Type 11.3.6 The SET Type 11.4 Spatial Data Types 11.4.1 Spatial Data Types 11.4.2 The OpenGIS Geometry Model 11.4.3 Supported Spatial Data Formats 11.4.4 Geometry Well-Formedness and Validity 11.4.5 Spatial Reference System Support 11.4.6 Creating Spatial Columns 11.4.7 Populating Spatial Columns 11.4.8 Fetching Spatial Data 11.4.9 Optimizing Spatial Analysis 11.4.10 Creating Spatial Indexes 11.4.11 Using Spatial Indexes 11.5 The JSON Data Type 11.6 Data Type Default Values 11.7 Data Type Storage Requirements 11.8 Choosing the Right Type for a Column 11.9 Using Data Types from Other Database Engines Table of Contents 11.1 Numeric Data Types 11.1.1 Numeric Data Type Syntax 11.1.2 Integer Types (Exact Value) - INTEGER, INT, SMALLINT, TINYINT,
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |